I’m a deeply committed devotee of the movies. I taught film criticism at the University of New Hampshire, wrote film reviews for a seacoast New Hampshire arts weekly for years and had a film review show on the radio for many more. And I’ve been leading film discussions at The Music Hall in Portsmouth for going on 17 years. But in the years I’ve been watching movies, I can think of only a few in which investors come off as anything other than villains and sleazes. The biggest sleaze of all, of course, would have to be Gordon Gekko,...